402420042044 has 24 divisors (see below), whose sum is σ = 705398828736. Its totient is φ = 200877768000.

The previous prime is 402420042029. The next prime is 402420042053. The reversal of 402420042044 is 440240024204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6751814 + ... + 6811154.

It is an arithmetic number, because the mean of its divisors is an integer number (29391617864).

Almost surely, 2^402420042044 is an apocalyptic number.

It is an amenable number.

402420042044 is a deficient number, since it is larger than the sum of its proper divisors (302978786692).

402420042044 is a wasteful number, since it uses less digits than its factorization.

402420042044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62117 (or 62115 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 402420042044 its reverse (440240024204), we get a palindrome (842660066248).

The spelling of 402420042044 in words is "four hundred two billion, four hundred twenty million, forty-two thousand, forty-four".